Mitsubishi Electronics MUZ-GB50VA Test RUN Operation How to operate fixed-frequency operation

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temperature

(:)

air Dry-bulb

difference

Indoor

 

24.1

22.3

20.4

18.5

16.7

14.8

13.0

11.1

-GB50VA -GB50VA frequency 82Hz

 

 

 

 

 

 

 

 

 

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Outdoor intake air Wet-bulb temperature (:)

 

 

 

 

 

 

 

 

 

 

 

 

 

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Outdoor intake air Wet-bulb temperature (:)

MSZ MUZ Rated

NOTE:The above broken lines are for the heating operation without any frost and defrost operation.

8-2. Capacity and input correction by operational frequency of compressor

MUZ-GB50VA

1.5

Correction of Cooling capacity

1.5

 

Correction of Cooling total input

 

 

 

 

 

correctionInput factors

 

 

 

 

 

 

correctionCapacity factors

correctionCapacity factors

 

 

 

 

 

1.0

 

 

 

 

 

 

1.0

 

 

 

 

 

 

 

 

 

 

 

 

 

0.5

 

 

 

 

 

 

0.5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.0

 

 

 

 

 

 

0.0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

50

100

150

0

50

100

150

 

 

 

 

 

 

(Hz)

 

 

 

 

 

 

 

(Hz)

The operational frequency of compressor

The operational frequency of compressor

 

Correction of Heating capacity

1.5

1.0

 

 

factors

 

 

correction

0.5

 

 

 

 

Input

 

 

 

0.0

 

 

 

0

50

100

150

 

 

 

(Hz)

The operational frequency of compressor

Correction of Heating total input

2.0

1.5

1.0

0.5

0.0

0 50 100 150

(Hz)

The operational frequency of compressor

8-3. TEST RUN OPERATION (How to operate fixed-frequency operation)

1.Press EMERGENCY OPERATION switch to COOL or HEAT mode (COOL : Press once, HEAT : Press twice).

2.Test run operation starts and continues to operate for 30 minutes.

3.Compressor operates at rated frequency in COOL mode or 58Hz in HEAT mode.

4.Indoor fan operates at High speed.

5.After 30 minutes, test run operation finishes and EMERGENCY OPERATION starts (Operation frequency of compressor varies).

6.To cancel test run operation (EMERGENCY OPERATION), press EMERGENCY OPERATION switch or any button on remote controller.

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Contents R410A Refrigerant OBR01 Contents Revised EDITION-ASNB130FLDH Technical ChangesMUZ-GA50VA E1 SNB130FLDH1Part Names and Functions SpecificationAccessories MUZ-GB50VASpecifications and rating conditions of main electric parts Noise Criteria Curves Band OctaveOutlines and Dimensions MUZ-GB50VA Outdoor UnitWiring Diagram Outdoor Unit MUZ-GB50VARefrigerant System Diagram UnitmmIndoor Unit Outdoor Unit Performance CurvesCapacity and input curves Test RUN Operation How to operate fixed-frequency operation MUZ-GB50VACool operation Outdoor MSZ-GB50VA MUZ-GB50VAPerformance Data Cool operation Rated frequency 79Hz SHC SHF InputOutdoor DB Outdoor fan motor control Actuator ControlPerformance Data Heat operation R.V. coil controlTroubleshooting Relation between main sensor and actuator MUZ-GB50Failure mode recall function OFFOperational procedure Outdoor unit failure mode table Time flash Communication error Lighting Operation Instruction of troubleshootingIndicator EmergencyTroubleshooting check table MUZ-GB50VA Operate Lightning Twice Outdoor power systemOnce Lighting WHT RED Trouble criterion of main parts MUZ-GB50VARED BLK BLK WHT RED ORNHow to check inverter/ compressor Troubleshooting flowCheck of outdoor thermistors When heating operation does not work Check of R.V. coilCheck of power supply Check of outdoor fan motorCheck of current-limiting resistor Check of LEVParts side Electromagnetic noise enters into TV sets or radios Discharge temperature thermistor RT62 Noise filter P.C. board CN3 Outdoor power boardCN2 CN5MUZ-GB50VA Outdoor Unit Operating Procedure Photos Disassembly InstructionsRemoving the cabinet Photo Operating Procedure Photos Removing R.V. coilTure thermistor and ambient temperature thermistor Removing outdoor fan motor PhotoRemoving the compressor and 4-way valve Photo Removing the reactorRoHS Parts List RoHS compliant MUZ-GB MUZ-GB50VA Accessory MUZ-GB50